- Use of established, oral, injected or implanted hormonal methods of contraception, intrauterine device (IUD) or intrauterine system (IUS) 7. Patients with serious co-morbidities including uncontrolled diabetes (HbA1c ≥8%), heart failure, cancer, neurodegenerative diseases, rheumatoid arthritis and other autoimmune diseases, other lung diseases including chronic bronchitis, chronic obstructive pulmonary disease or emphysema or other conditions characterised by eosinophilia and pulmonary symptoms (i.e. Churg-Strauss syndrome, allergic bronchopulmonary aspergillosis, eosinophilic pneumonia, etc.).